[AJD] sparkplugs- problem - failures - maintenance - new technology

[wwwayne johnson]

Duane's response was outstanding.  I use AC 86's as they tend to foul less 
but are short hex nut so its hard to get them out if a shield is used such 
as the "G".  But a little lacquer thinner and a blow out brings most back to 
life.  We just don't work them hard enough.  My 420 with thermostat control 
and H10 or H12 seldom fouls a plug and it uses a bit of oil and is rather 
tired.
Merle Wayne
----- Original Message ----- 
From: <astroguy at nas.com>
To: <antique-johndeere at lists.antique-tractor.com>
Sent: Thursday, November 16, 2006 8:52 PM
Subject: [AJD] sparkplugs- problem - failures - maintenance - new technology


> Seems like a lot of problems with JD tractors, comes from troublesome
> sparkplugs.
>
> So my questions are:
>
> 1)     Why do spark plugs go bad?
>
> 2)     Why do spark plugs go bad so fast in JD tractors?
>
> 3)     Is there a way to do some kind of preventive maintenance for plugs?
>
> 4)     Are there new technology sparkplugs that eliminate the need to
> purchaseng new plugs ever year? Bosche now produces Platinum Ir Fusion
> plugs made up of platinum and Iridium.  Reading the literature, sounds 
> like
> a great spark plug.
>
> Any thoughts??
>
> Thanks, Kreig
>
>
>
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